In the post-epidemic era, virtual partners have become good helpers in home fitness. Previous studies have shown that different interactive feedback from virtual partners will have different effects on individual sports incentives, among which sports incentives objectively include the improvement of sports ability. In this research, the virtual partner's exercise companion experiment was carried out, and the exercise oxygen uptake was taken as the dependent variable, and the factorial experiment was carried out in 3 x 2 (with or without positive encouragement feedback), in which the positive encouragement feedback included goal-oriented encouragement and non-goal-oriented encouragement. It is found that both moderate negative feedback and positive encouraging feedback of virtual partners can improve individual exercise oxygen uptake, and moderate negative feedback is more effective.